Table 1 Structural information and properties of WSe2/CrI3 heterostructures for Cr-HC and Se-HC (bracket) configurations.
From: Enhanced valley splitting of WSe2 in twisted van der Waals WSe2/CrI3 heterostructures
Adopted lattice | Twist angle (˚) | Lattice constant (Å) | Lattice mismatch (%) | Interlayer distance (Å) | Formation energy(meV Å-2) | MAE (meVCr-1) | Valley splitting (meV) |
|---|---|---|---|---|---|---|---|
WSe2 | 0 | 6.642 | −5.14 | 3.53 (3.56) | 37.19 (36.02) | −0.93 (-0.96) | −0.43 (−0.27) |
16.1 | 12 | −1.06 | 3.58 (3.59) | 44.91 (44.85) | −0.57 (-0.56) | 1.64 (1.74) | |
23.4 | 14.475 | 3.36 | 3.51 (3.57) | 44.68 (40.00) | −0.34 (-0.38) | 5.18 (2.07) | |
28.1 | 18.526 | 0.0 | 3.51 (3.50) | 45.02 (45.05) | −0.48 (-0.49) | 3.69 (3.61) | |
CrI3 | 0 | 7.002 | 5.4 | 3.47 (3.67) | 19.13 (17.66) | −0.54 (-0.54) | — |
16.1 | 12.128 | 1.07 | 3.56 (3.56) | 19.30 (19.22) | −0.51 (0.27) | 1.97 (0) | |
23.4 | 14.004 | −3.25 | 3.55 (3.56) | 21.32 (21.31) | −0.76 (-0.50) | — | |
28.1 | 18.526 | 0.19 | 3.51 (3.50) | 25.23 (25.26) | −0.48 (-0.49) | 3.69 (3.61) |
